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  <h2>Ebiten example - flood</h2>
  <iframe src="flood.content.html" width="640" height="480"></iframe>
  <div class="card"><pre class="card-body"><code class="language-go">// &#43;build example

package main

import (
        &#34;image/color&#34;
        _ &#34;image/png&#34;
        &#34;log&#34;

        &#34;github.com/hajimehoshi/ebiten&#34;
        &#34;github.com/hajimehoshi/ebiten/ebitenutil&#34;
)

const (
        screenWidth  = 320
        screenHeight = 240
)

var (
        ebitenImage *ebiten.Image
        colors      = []color.RGBA{
                {0xff, 0xff, 0xff, 0xff},
                {0xff, 0xff, 0x0, 0xff},
                {0xff, 0x0, 0xff, 0xff},
                {0xff, 0x0, 0x0, 0xff},
                {0x0, 0xff, 0xff, 0xff},
                {0x0, 0xff, 0x0, 0xff},
                {0x0, 0x0, 0xff, 0xff},
                {0x0, 0x0, 0x0, 0xff},
        }
)

func update(screen *ebiten.Image) error {
        if ebiten.IsRunningSlowly() {
                return nil
        }

        const (
                ox = 10
                oy = 10
                dx = 60
                dy = 50
        )
        screen.Fill(color.NRGBA{0x00, 0x40, 0x80, 0xff})

        op := &amp;ebiten.DrawImageOptions{}
        op.GeoM.Translate(ox, oy)
        screen.DrawImage(ebitenImage, op)

        // Fill with solid colors
        for i, c := range colors {
                op := &amp;ebiten.DrawImageOptions{}
                x := i % 4
                y := i/4 &#43; 1
                op.GeoM.Translate(ox&#43;float64(dx*x), oy&#43;float64(dy*y))

                // Reset RGB (not Alpha) 0 forcibly
                op.ColorM.Scale(0, 0, 0, 1)

                // Set color
                r := float64(c.R) / 0xff
                g := float64(c.G) / 0xff
                b := float64(c.B) / 0xff
                op.ColorM.Translate(r, g, b, 0)
                screen.DrawImage(ebitenImage, op)
        }
        return nil
}

func main() {
        var err error
        ebitenImage, _, err = ebitenutil.NewImageFromFile(&#34;_resources/images/ebiten.png&#34;, ebiten.FilterDefault)
        if err != nil {
                log.Fatal(err)
        }
        if err := ebiten.Run(update, screenWidth, screenHeight, 2, &#34;Flood fill with solid colors (Ebiten Demo)&#34;); err != nil {
                log.Fatal(err)
        }
}
</code></pre></div>

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